Read it through once

[Lines 183, 184: Secure from flames.--The poet probably alludes to such fires as those in which the Alexandrine and Palatine Libraries were destroyed. From envy's fiercer rage.--Probably he alludes to the writings of such men as Maevius (see note to line 34) and Zoilus, a sophist and grammarian of Amphipolis, who distinguished himself by his criticism on Isocrates, Plato, and Homer, receiving the nickname of _Homeromastic_ (chastiser of Homer). Destructive war--Probably an allusion to the irruption of the barbarians into the south of Europe. And all-involving age; that is, time. This is usually explained as an allusion to 'the long reign of ignorance and superstition in the cloisters,' but it is surely far-fetched, and more than the language will bear.]